package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetMealService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private SetMealService setMealService;
    @Reference
    private MemberService memberService;
    //会员数量折线图数据
    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){
        //获取日历对象
        Calendar calendar = Calendar.getInstance();
        //将过去一年时间添加到日历对象
        calendar.add(Calendar.MONTH,-12);
        //创建一个map集合，用户封装传递给页面的数据
        Map map = new HashMap();
        //创建一个list集合用于保存查询的数据
        List list = new ArrayList();
        for (int i = 0; i < 12; i++) {
            calendar.add(Calendar.MONTH,1);
            Date time = calendar.getTime();
            //将该时间添加到list集合
            list.add(new SimpleDateFormat("yyyy.MM").format(time));
        }
        //将月份信息，添加到map集合
        map.put("months",list);

        //依据月份查询会员数量
        List<Integer> memberCount = memberService.findMemberCountByMonths(list);
        //将查询的结果添加到集合中
        map.put("memberCount",memberCount);
        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
    }

    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport(){
        //查找套餐预约数量
        List<Map<String,Object>> list = setMealService.findSetmealCount();
        //将查询到的封装到map集合
        Map<String,Object> map = new HashMap<>();
        map.put("setmealCount",list);
        //将套餐的名称单独放到一个list结合中，并封装到map集合
        List<String> setmealNames = new ArrayList<>();
        for (Map<String, Object> m : list) {
            String name = (String) m.get("name");
            setmealNames.add(name);
        }
        map.put("setmealNames",setmealNames);
        return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
    }

    /**
     * 获取运营统计数据
     * @return
     */
    @Reference
    private ReportService reportService;

    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){
        try {
            Map<String,Object> result = reportService.getBusinessReport();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,result);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    /**
     * d导出运营数据报表
     *
     */
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
        try{
//远程调用报表服务获取报表数据
            Map<String, Object> result = reportService.getBusinessReport();
//取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
            //获得Excel模板文件绝对路径
            String templateRealPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";
            //读取模板文件创建Excel表格对象
            XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File(templateRealPath)));
            XSSFSheet sheet = workbook.getSheetAt(0);
            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期
            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数
            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数
            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数
            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数
            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数
            int rowNum = 12;
            for(Map map : hotSetmeal){//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }
            //通过输出流进行文件下载
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition",
                    "attachment;filename=report.xlsx");
            workbook.write(out);
            out.flush();
            out.close();
            workbook.close();
            return null;
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL,null);
        }
    }

    /**
     * 以pdf文件格式导出运营数据报表
     * @param request
     * @param response
     * @return
     */
    @RequestMapping("/exportBusinessReport4PDF")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response){

        try {
            //远程调用报表服务获取报表数据
            Map<String, Object> result = reportService.getBusinessReport();
            //取出返回结果数据，准备将报表数据写入到PDF文件中
            List<Map> hotSetmeal = (List<Map>)result.get("hotSetmeal");
            //动态获取模板文件绝对磁盘路径
            String jrxmlPath = request.getSession().getServletContext().getRealPath("template")+File.separator+"health_business3.jrxml";
            String jasperPath= request.getSession().getServletContext().getRealPath("template")+File.separator+"health_business3.jasper";
            //编译模板
            //##就是提供模板文件路径和编译后的文件路径
            JasperCompileManager.compileReportToFile(jrxmlPath,jasperPath);

            //填充数据，使用javabean数据源方式填充
            //## parammeters类型数据，直接提供就行
            //## 需要遍历的数据，则需要以集合形式单独提供
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperPath, result, new JRBeanCollectionDataSource(hotSetmeal));
            //通过输出流下载文件
            ServletOutputStream out = response.getOutputStream();
            //指定以何种形式何种类型下载文件
            response.setContentType("application/pdf");
            response.setHeader("content-disposition","attachment;filename=report.pdf");
            //输出文件exportReportToPdfStream
            JasperExportManager.exportReportToPdfStream(jasperPrint,out);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
        return null;
    }
}
